CN114484122A

CN114484122A - Multi-hose device

Info

Publication number: CN114484122A
Application number: CN202110526767.8A
Authority: CN
Inventors: H·赖因哈特
Original assignee: Neoperl GmbH
Current assignee: Neoperl GmbH
Priority date: 2020-11-13
Filing date: 2021-05-14
Publication date: 2022-05-13
Also published as: CN215215223U; WO2022101319A1; EP4121679A1; EP4121679B1; DE202020106539U1; US20230392723A1; CN116529442A

Abstract

The invention relates to a multi-hose device (1, 1a) having an outer hose (2), at least one inner hose (3, 3a) arranged in the outer hose (2), and at least one coupling end (4, 4a) to which the outer hose (2) and the at least one inner hose (3, 3a) are connected, wherein the at least one coupling end (4, 4a) has a through-flow opening (5, 5b) for the outer hose (2) in which a receptacle (6, 6a, 6b) for the at least one inner hose (3, 3a) is arranged, wherein the receptacle surrounds the at least one inner hose (3, 3a) over less than one entire circumference of the at least one inner hose (3, 3 a). This has the advantage that complex shaping is avoided when the inner hose is completely clamped on the outside.

Description

Multi-hose device

Technical Field

The invention relates to a multi-hose arrangement having an outer hose, at least one inner hose arranged in the outer hose, and at least one coupling end to which the outer hose and the at least one inner hose are connected.

Background

In such multi-hose arrangements, for example, cold and warm water are supplied separately from one another to the mixed water, or different bodies of water, for example, concentrated water, are supplied to the water channel. Multi-hose arrangements of this type are known, which are formed, for example, by a kitchen coupling pull-out hose or other hose arrangement.

The production of such multi-hose arrangements is often associated with high costs. Furthermore, the coupling end (to which the outer tube and the at least one inner tube are coupled) has a reduced flow area through which the liquid guided by the outer tube can flow, depending on the type of construction.

Disclosure of Invention

The object of the invention is to simplify the production of the multi-hose device described at the outset.

The solution of this object in a hose arrangement of the type mentioned at the outset is in particular that the multi-hose arrangement has an outer hose, at least one inner hose arranged in the outer hose, and at least one coupling end to which the outer hose and the at least one inner hose are connected, the at least one coupling end having a through-flow opening for the outer hose, in which through-flow opening a receptacle for the at least one inner hose is arranged, wherein the receptacle surrounds the at least one inner hose over less than one entire circumference of the at least one inner hose.

This has the advantage that complex shaping is avoided when the inner hose is completely clamped on the outside. The coupling end can thus be produced more simply. Furthermore, less material is required which is arranged in the throughflow cross section of the outer hose. Thus, an increased through-flow opening of the outer hose is provided.

In one embodiment, the receptacle surrounds the at least one inner tube over more than half of the circumference. It is thereby ensured that the inner hose can be securely locked in the receiving portion, which results in a stable arrangement of the inner hose relative to the outer hose and the coupling end.

In a further embodiment, it is provided that the through-flow opening and the receptacle are formed by bores which are offset eccentrically with respect to one another. The bore of the receptacle can be positioned such that its circumference intersects the circumference of the bore of the through-flow opening. This is a particularly simple way of manufacturing the receiving portion surrounding the inner hose over less than one complete circumference.

In a further embodiment, it is provided that the at least one inner hose carries a preferably crimped hose nipple, in particular with an internally expanding crimping sleeve, which is inserted into the receptacle, wherein the hose nipple is made of brass or stainless steel, for example.

By inserting the hose connector into the receiving portion, which is preferably made of a harder material than the hose itself, the relative arrangement of the hose and the coupling end can be further stabilized.

In a further embodiment, provision is made for the hose connector to be held in the receptacle by means of a press fit, which results in a secure holding of the hose connector in the receptacle, which can be achieved without further means and thus in a simple manner.

In a further embodiment, provision is made for a preferably circumferential retaining flange to be formed on the hose connector, which retaining flange bears against the coupling end. This has the advantage that the hose connector can be locked in the longitudinal direction in a simple manner on the coupling end.

In a further embodiment, provision is made for a depression into which the hose nipple or the retaining flange is fitted to be formed in the coupling end, in particular the hose nipple or the retaining flange filling the depth of the depression. This has the advantage that the hose connector can also be locked in a simple manner on the coupling end in the transverse direction perpendicular to the longitudinal direction. Furthermore, the hose connector can thus be inserted into the receptacle in a planar manner, as a result of which a flat sealing surface is produced on the receptacle or on the hose connector.

In a further embodiment, it is provided that the coupling end has a flat end face beyond which the hose nipple and/or the associated crimp sleeve and/or the at least one inner hose project. In this way, components arranged on the flat end faces, for example, flat sealing elements, can be mounted or locked in a targeted manner on the projecting hose nipple and/or the associated crimp sleeve and/or the at least one inner hose by means of corresponding recesses or openings.

In a further embodiment, it is provided that a sealing element is arranged on the free coupling end, which sealing element surrounds the at least one inner hose along the entire circumference. This makes it possible to establish a connection with the inner hose that is sealed with respect to the outer hose.

In a further embodiment, it is provided that the at least one inner hose, in particular the associated hose connector, has an outer diameter which is smaller than the inner diameter of the through-flow opening, in particular at most half of this inner diameter. This ensures that the through-flow opening has an opening which communicates with the outer hose even after the inner hose has been mounted, which opening furthermore provides a location for accommodating at least one further inner hose.

In a further embodiment, it is provided that at least two inner hoses are arranged in the outer hose, the respective, preferably identically designed receptacles of the inner hoses are arranged at a distance from one another, in particular opposite one another, on the through-flow opening, and/or the respective hose connections are designed separately from one another or connected to one another, in particular integrally. Thereby, the plurality of inner hoses arranged in the outer hose can be individually mounted and removed on the coupling end, respectively. Furthermore, the plurality of inner hoses are connected to the coupling end without additional means for reducing the throughflow opening and are therefore arranged fixedly relative to one another.

In a further embodiment, it is provided that at least one of the receptacles, into which the interconnected, in particular integrally formed, hose nipple is inserted, encompasses less than half of the circumference of the respective inner hose.

For example, one receptacle can be provided for each of the two inner hoses. The two receptacles can be arranged opposite one another in the through-flow opening. The interconnected hose connections are supported on one another in such a way that less than half of the circumference, for example less than one quarter of the circumference, surrounds the receiving space, which is sufficient to hold the inner hose in the receiving space in a stable manner. Therefore, fewer drilling surfaces for the receptacle are required. Thus, the through-flow opening can be selected to be large.

In a further embodiment, it is provided that the center distance of the at least two inner hoses at the coupling end is at least as large as the inner diameter of the through-flow opening. This has the advantage that, after the installation of the two inner hoses, the inner hoses cover less of the surface of the through-flow opening.

In a further embodiment, it is provided that the outer hose has a preferably corrugated inner layer and/or a preferably braided outer layer. In this way, a multi-hose device is provided, the outer hose of which is not only flexible bendable but also robust.

In a further embodiment, it is provided that the outer tube is crimped to the connection end, thereby ensuring a simple and secure connection of the outer tube to the connection end.

The invention is described in more detail below with reference to a number of preferred embodiments.

Drawings

Showing:

figures 1a and 1b show a first multi-hose device in a three-dimensional view and a top view respectively,

figures 2a and 2b show a first multi-hose device with a sealing element in a three-dimensional view and a top view respectively,

figures 3a and 3b show the multi-hose device with the sealing element in exploded and partial perspective views respectively,

figures 4a and 4b show a second multi-hose device in a three-dimensional view and an exploded view respectively,

fig. 5a to 5e each show a side view of the first multi-hose device during the manufacturing process thereof.

Detailed Description

Fig. 1a and 1b show a multi-hose device 1 in a three-dimensional view and a top view, respectively, with an outer hose 2, two

inner hoses

3 and 3a arranged in the outer hose, and a coupling end 4. The outer hose 2 and the

inner hoses

3, 3a are connected to the coupling end 4. The outer hose 2 is crimped with the coupling end 4, for example from the outside or by means of a rivet technique. Furthermore, the coupling end 4 has a through-flow opening 5 for the outer hose 2. Two

receptacles

6, 6a are arranged in the through-flow opening 5. The

receptacles

6, 6a are of identical design. The receiving portion 6 surrounds the inner hose 3 over less than an entire circumference. Likewise, the receptacle 6a surrounds the inner tube 3a over less than one full circumference.

The through-flow opening 5 is formed by a bore section in the coupling end 4 along the central axis of the coupling end 4. The two

receptacles

6 and 6a are formed by bore sections which are each offset eccentrically from the bore sections of the through-flow opening 5. The cross-sections of the bore sections of the through-flow openings 5 perpendicular to the center axis intersect the cross-sections of the bore sections of the

receptacles

6 and 6a perpendicular to the center axis. In this way, the

receptacles

6 and 6a are incomplete or open circles. By means of the open circular shape of the

receptacles

6 and 6a, the

receptacles

6 and 6a respectively enclose the two

inner hoses

3 and 3a (here with their

respective hose connections

7, 7a) over less than one full circumference, in particular over more than half the circumference as shown. It is thereby ensured that the two

inner hoses

3 and 3a can be connected firmly to the coupling end 4 without these inner hoses accidentally coming loose from the

receptacles

6 and 6 a. The inserted and crimped

hose connections

7, 7a are pressed axially into the

receptacles

6, 6 a. Alternatively, the

inner hose

3 or 3a (here, for example, having a hose connection with 7 and 7a) can be inserted, in particular pressed, radially outward into the

respective receptacle

6, 6 a.

The coupling end has a bore surface surrounding the through-flow opening 5 or a (bore) flange 5a of the through-flow opening, said bore surface/(bore) flange at least partially surrounding the bore portions of the two

receptacles

6 and 6 a. The flange 5a is shown surrounding the

bore portions

6 and 6a over less than an entire circumference. The flange 5a can thus be designed thinner than the flange which surrounds the

hole sections

6 and 6a over the entire circumference of the hole sections, respectively. This not only saves material, but also simplifies the production of the multi-hose device 1. Furthermore, the through-flow opening 5 can be enlarged.

Furthermore, the center distance of the two

inner hoses

3 and 3a on the coupling end is at least as large as the inner diameter of the through-flow opening 5. In the example shown, the center distance of the two

inner hoses

3 and 3a is just as large as the inner diameter of the through-flow opening 5. In other words: the centers of the bore sections for receiving the two

inner hoses

3 and 3a are in this case in each case opposite one another, in particular at the edge of the bore section for the through-flow opening 5. In this arrangement, it is possible to provide

receptacles

6 and 6a for the fixed accommodation of the two

inner hoses

3 and 3a and to provide a relatively large through-flow opening 5.

The inner hose 3 comprises or carries a hose connector 7, the opening of which accommodates the inner hose 3. The inner hose 3a carries a hose connection 7a, which is correspondingly identically constructed. The inner hose 3 is connected to the hose connector 7 by means of a crimp sleeve 8. The crimp sleeve 8 is arranged inside the inner hose 3 and inside the hose nipple 7. By expanding the crimping sleeve 8, the inner hose 3 can be fixedly connected to the hose connector 7. For this purpose, the crimp sleeve 8 is made of a softer material than the hose connector 7. The hose connector 7 is made of, for example, hard metal, brass or stainless steel.

The hose nipple 7 is held in the receptacle 6. The hose connector 7 can be held in the receptacle 6, for example, by means of a press fit. Furthermore, the hose connector 7 has a retaining flange which is supported on the coupling end 4. In this case, the retaining flange or the entire hose connector 7 fills the recess or depression in the coupling end 4. The retaining flange or hose connector 7 ends flush with the flange 5 a. In other words, the opening formed by the hose connector 7 and the through-flow opening 5 lie in one flat plane. Stated another way, the coupling end has a flat end face. The inner hose 3 or the crimp sleeve 8 protrudes beyond the flat end face. Alternatively or additionally, the hose connector 7 projects beyond the bore surface 5 a.

Fig. 2a and 2b show the multi-hose device 1 of fig. 1a and 1 b. Identical or similar features are provided with the same reference numerals. The multi-hose device 1 shown in fig. 2a and 2b comprises a sealing element 9. The sealing element 9 is designed to be circular. The outer diameter of the sealing element 9 is approximately equal to the net inner diameter of the coupling end 4. The sealing element 9 has a plurality of openings, namely one opening each for the two

inner hoses

3 and 3a and an opening for the through-flow opening 5. The sealing element 9 opening for the

inner hoses

3 and 3a surrounds the

inner hoses

3 and 3a along the entire circumference. The inner diameter of the opening of the sealing element 9 for the

inner hoses

3 and 3a is equal to the outer diameter of the

respective crimp sleeve

8 and 8a, in particular to the outer diameter of the portion of the

crimp sleeve

8 and 8a projecting beyond the flat end face of the coupling end 4.

A flat sealing surface is provided by the flat end surface of the coupling end 4. The sealing function of the sealing element 9 is thereby improved. The sealing element 9 for the

inner hoses

3 and 3a surrounds, in an opening, the

crimp sleeves

8, 8a or the

inner hoses

3 and 3a projecting from the flat end face of the coupling end 4. In this way, the rotational position of the sealing element 9 relative to the coupling end 4 is fixed.

In fig. 1a and 1b, fig. 2a and 2b, the

hose connections

7 and 7a are constructed separately from one another. Alternatively, the two

hose connections

7 and 7a can be connected to one another or formed integrally. In other words, the hose connector member may comprise two

hose connectors

7 and 7 a. Such a hose nipple member can be simultaneously fitted into both the receiving

portions

6 and 6 a. Thus, the hose joint member is supported by the two receiving

portions

6 and 6 a. In other words, the hose nipple 7 is supported by the hose nipple 7a in addition to the housing 6. The

respective receptacles

6 and 6a can thus be designed such that they enclose the

inner hoses

3 and 3a over less than half of the circumference, for example over less than or equal to one quarter of the circumference, respectively, without hindering the stability of the

hose connectors

7 and 7 a. In other words again: the

receptacles

6 and 6a may enclose a central angle of less than 180 °, for example less than or equal to 90 °, of the

inner hoses

3 and 3a, respectively. The through-flow opening 5 can thus be enlarged while at the same time ensuring that the

hose connectors

7 and 7a are held securely in the

respective receptacles

6 and 6 a.

Fig. 3a and 3b show an exploded view and a partial perspective view of the multi-hose device 1 in fig. 2a and 2 b. Identical or similar features are provided with the same reference numerals.

Fig. 4a and 4b show a three-dimensional view and an exploded view, respectively, of a second embodiment of a multi-hose device 1a similar to the first multi-hose device 1. Identical or similar features are provided with the same reference numerals. The multi-hose device 1a comprises an outer hose 2 and two

inner hoses

3 and 3a arranged in the outer hose 2 and a coupling end 4 a. The coupling end 4a has a through-flow opening 5b for the outer hose 2. The receptacles 6b for the two

inner hoses

3 and 3a are arranged in the through-flow opening 5 b. In other words: the two

inner hoses

3 and 3a are arranged in a common receptacle 6 b. The common receptacle 6b surrounds the two

inner hoses

3 and 3a over less than one complete circumference (here, for example, by means of a common hose connector 7 b). In this way, as in the exemplary embodiments shown in fig. 1a and 1b, fig. 2a and 2b, fig. 3a and 3b, the through-flow opening 5b is connected directly to the

receptacles

6 and 6a or 6b of the two

inner hoses

3 and 3 a. As shown, the common receptacle 6b encloses the two

inner hoses

3 and 3a over more than half of the circumference. In other words: the receiving portion 6a surrounds the central angle of the

inner hoses

3 and 3a of less than 360 ° and more than 180 °, respectively. Alternatively, the common receptacle 6b can enclose the two

inner hoses

3 and 3a over less than half of the circumference.

The multi-hose device 1a comprises an integrally constructed hose nipple member 7b comprising two hose nipples. The hose nipple member 7b corresponds to two integrally connected

hose nipples

7 and 7 a. The hose nipple of the hose nipple member 7b is crimped with the crimping

sleeves

8, 8a expanded from the inside, respectively, in the same manner as the

hose nipples

7 and 7 a. The hose nipple member 7b forms a flat end surface with the coupling end 4 a. As described with reference to fig. 1a and 1b, 2a and 2b, and 3a and 3b, the hose nipple member 7b may be held in the receptacle 6b with a press fit. The hose nipple member 7b rests on the support shoulder 10 of the coupling end 4 a. Additionally or alternatively, the hose nipple member 7b fits into and/or fills the depth of the countersink of the coupling end 4 a.

The crimping sleeve 8 or the

inner hoses

3 and 3a project beyond the flat end faces. Also shown is a sealing element 9 a. The sealing element 9a has openings for the openings of the hose nipple component 7b or the

inner hoses

3 and 3a and the through-flow opening 5b, respectively, wherein the sealing element 9a openings for the

inner hoses

3 and 3a in turn cooperate with the projecting crimping

sleeves

8 and 8 a.

Furthermore, a locking element 11 is shown, which engages both in the opening in the coupling end 4a and in the opening in the sealing element 9a or fills the opening. Thereby, the position or rotational position of the circular sealing element 9a relative to the coupling end 4a can be locked.

Fig. 5a to 5e show a manufacturing process of the multi-hose device 1 shown in fig. 1a and 1b, fig. 2a and 2b, fig. 3a and 3 b. Identical or similar features are provided with the same reference numerals.

The first step (fig. 5a) comprises: the outer hose 2 is connected, in particular crimped, to the coupling end 4. In particular, the outer sleeve 12 can be pressed against the inner sleeve 13 of the coupling end 4. The outer hose 2 is arranged between the outer sleeve 12 and the inner sleeve 13.

Thus, the first step comprises: the outer hose 2 is mounted on the coupling end 4, wherein two

inner hoses

3, 3a are arranged in the outer hose 2. In particular, the first step comprises: the outer hose 2 is introduced into the coupling end 4.

The second step comprises: the

inner hoses

3 and 3a are crimped with the

hose nipples

7 and 7a, respectively, by means of crimping

sleeves

8 and 8 a. In particular, the second step comprises (i): introducing the

inner hoses

3 and 3a into the

hose nipples

7 and 7a (see fig. 5b), (ii) inserting the crimping

sleeves

8 and 8a into the

inner hoses

3 and 3a and into the

hose nipples

7 and 7a, and (iii) expanding the crimping

sleeves

8 and 8a to crimp the

inner hoses

3 and 3a with the

hose nipples

7, 7a, respectively. The diagram of fig. 5c is thus derived.

The third step (fig. 5d) comprises in particular: the

hose nipples

7, 7a of the

inner hoses

3 and 3a are press-fitted into the

respective receiving portions

6 and 6a of the coupling end portion 4.

The threaded sleeve 14 can then be pushed up (fig. 5 e). The coupling end 4 can also be designed for other connection means, for example a plug connection or a bayonet connection.

As shown in fig. 5a to 5e, the outer hose 2 has a braided outer layer. Furthermore, the outer hose 2 has a corrugated inner layer (not shown).

The two exemplary embodiments shown in fig. 1a to 5e have in common that the outer diameters of the two

inner hoses

3 and 3a are each smaller than the net inner diameter of the outer hose 2, in particular smaller than half the net inner diameter of the outer hose 2. In this way more than one inner hose, in the example shown two inner hoses, are in place in the outer hose 2.

List of reference numerals

1 (first) a multi-hose device,

1a (further) multi-hose device,

2 an outer hose pipe, wherein the outer hose pipe,

3a first inner hose, which is provided with a hose,

3a second inner hose, and a second inner hose,

4a first coupling end portion of the first coupling member,

4a of the second coupling end portion,

5 the first through-flow opening is,

5a flange of the through-flow opening,

5b a second through-flow opening, wherein,

6a first receiving portion for receiving the first liquid,

6a of the second housing part, 6a,

6b a third or common housing,

7a first hose connection piece for connecting a hose,

7a of the second hose connector, and,

7b a hose connector (member),

8a first crimping sleeve which is arranged to be crimped,

8a of the second crimping sleeve, 8a,

9a first sealing element is provided on the first side,

9a of the second sealing element, 9a,

10 a support shoulder at the coupling end,

11-locking the components of the device,

12 an outer sleeve of a tubular material, and,

13 an inner sleeve, which is provided with a plurality of holes,

14 a threaded sleeve, which is provided with a thread,

15 holding the flange.

Claims

1. Multi-hose arrangement (1, 1a) having an outer hose (2), at least one inner hose (3, 3a) arranged in the outer hose (2) and at least one coupling end (4, 4a) to which the outer hose (2) and the at least one inner hose (3, 3a) are connected, characterized in that the at least one coupling end (4, 4a) has a through-flow opening (5, 5b) for the outer hose (2) in which a receptacle (6, 6a, 6b) for the at least one inner hose (3, 3a) is arranged, wherein the receptacle surrounds the at least one inner hose (3, 3a) over less than one entire circumference of the at least one inner hose (3, 3 a).

2. The multi-hose arrangement (1, 1a) according to claim 1, characterized in that the housing (6, 6a, 6b) surrounds the at least one inner hose (3, 3a) over more than half of the circumference.

3. Multi-hose device (1, 1a) according to at least one of the preceding claims, characterized in that the through-flow opening (5) and the receptacle (6, 6a) are formed by bores which are eccentrically offset from one another.

4. Multi-hose device (1, 1a) according to at least one of the preceding claims, characterized in that the at least one inner hose (3, 3a) carries a preferably crimped hose nipple (7, 7a, 7b), in particular having an internally flared crimping sleeve (8, 8a), which is inserted into a receptacle (6, 6 a).

5. The multi-hose device (1, 1a) according to claim 4, characterized in that the hose nipple (7, 7a, 7b) is made of brass or stainless steel.

6. Multi-hose device (1, 1a) according to at least one of claims 4 to 5, characterized in that the hose nipple (7, 7a, 7b) is held in the receptacle (6, 6a, 6b) with a press fit.

7. The multi-hose arrangement (1, 1a) according to at least one of claims 4 to 6, characterized in that a preferably circumferential retaining flange (15) is configured on the hose connector (7, 7a), which retaining flange is supported on the coupling end (4).

8. Multi-hose device (1, 1a) according to at least one of claims 4 to 7, characterized in that a depression is configured in the coupling end (4, 4a), into which depression the hose nipple (7, 7a, 7b) or the retaining flange is fitted, in particular the hose nipple (7, 7a, 7b) or the retaining flange (15) fills the depth of the depression.

9. Multi-hose device (1, 1a) according to at least one of claims 4 to 8, characterized in that the coupling end (4, 4a) has a flat end face, beyond which the hose nipple (7, 7a, 7b) and/or the associated crimping sleeve (8, 8a) and/or the at least one inner hose (3, 3a) project.

10. The multi-hose device (1, 1a) according to at least one of the preceding claims, characterized in that a sealing element (9, 9a) is placed on the free coupling end (4, 4a), which encloses the at least one inner hose (3, 3a) along the entire circumference.

11. The multi-hose device (1, 1a) according to at least one of the preceding claims, characterized in that the outer diameter of the at least one inner hose (3, 3a), in particular of the associated hose connector (7, 7a, 7b), is smaller than the inner diameter of the through-flow opening (5, 5b), in particular at most half as large as the inner diameter.

12. The multi-hose device (1, 1a) according to at least one of the preceding claims, characterized in that at least two inner hoses (3, 3a) are arranged in the outer hose (2), the respective, preferably identically configured receptacles (6, 6a) of which are arranged at a distance from one another, in particular opposite one another, on the through-flow opening (5), and/or the respective hose connections (7, 7a, 7b) are configured separately from one another or connected to one another, in particular integrally.

13. The multi-hose arrangement (1, 1a) according to claim 12, characterized in that at least one of the receptacles (6b) into which an interconnected, in particular integrally constructed hose nipple (7b) is inserted encloses less than half of the circumference of the respective inner hose (3).

14. The multi-hose device (1, 1a) according to at least one of the preceding claims, characterized in that the center distance of the at least two inner hoses (3, 3a) on the coupling end (4) is at least as large as the inner diameter of the through-flow opening (5).

15. Multi-hose device (1, 1a) according to at least one of the preceding claims, characterized in that the outer hose (2) has an inner layer, preferably corrugated, and/or an outer layer, preferably braided.

16. The multi-hose device (1, 1a) according to at least one of the preceding claims, characterized in that the outer hose (2) is crimped with the coupling end (4).